Fabricated High-Strength, Low-Elastic Modulus Biomedical Ti-24Nb-4Zr-8Sn Alloy via Powder Metallurgy
With the huge demands of an aging society, it is urgent to develop a new generation of non-toxic titanium alloy to match the modulus of human bone. Here, we prepared bulk Ti2448 alloys by powder metallurgy technology, and focused on the influence of the sintering process on the porosity, phase compo...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/16/10/3845 |
| _version_ | 1797599329114914816 |
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| author | Amy X. Y. Guo Bin Cao Zihan Wang Xiao Ma Shan Cecilia Cao |
| author_facet | Amy X. Y. Guo Bin Cao Zihan Wang Xiao Ma Shan Cecilia Cao |
| author_sort | Amy X. Y. Guo |
| collection | DOAJ |
| description | With the huge demands of an aging society, it is urgent to develop a new generation of non-toxic titanium alloy to match the modulus of human bone. Here, we prepared bulk Ti2448 alloys by powder metallurgy technology, and focused on the influence of the sintering process on the porosity, phase composition, and mechanical properties of the initial sintered samples. Furthermore, we performed solution treatment on the samples under different sintering parameters to further adjust the microstructure and phase composition, so as to achieve strength enhancement and reduction of Young’s modulus. Solution treatment can effectively inhibit the continuous α phase precipitated along the grain boundaries of the β matrix, which is beneficial to the fracture resistance. Therefore, the water-quenched sample exhibits good mechanical properties due to the absence of acicular α-phase. Samples sintered at 1400 °C and subsequently water quenched have excellent comprehensive mechanical properties, which benefit from high porosity and the smaller feature size of microstructure. To be specific, the compressive yield stress is 1100 MPa, the strain at fracture is 17.5%, and the Young’s modulus is 44 GPa, which are more applicable to orthopedic implants. Finally, the relatively mature sintering and solution treatment process parameters were screened out for reference in actual production. |
| first_indexed | 2024-03-11T03:32:45Z |
| format | Article |
| id | doaj.art-c83e277bdb8f475e95a6202121d2d94d |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-11T03:32:45Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-c83e277bdb8f475e95a6202121d2d94d2023-11-18T02:17:03ZengMDPI AGMaterials1996-19442023-05-011610384510.3390/ma16103845Fabricated High-Strength, Low-Elastic Modulus Biomedical Ti-24Nb-4Zr-8Sn Alloy via Powder MetallurgyAmy X. Y. Guo0Bin Cao1Zihan Wang2Xiao Ma3Shan Cecilia Cao4Materials Genome Institute, Shanghai University, Shanghai 200444, ChinaMaterials Genome Institute, Shanghai University, Shanghai 200444, ChinaMaterials Genome Institute, Shanghai University, Shanghai 200444, ChinaInstitute for the Conservation of Cultural Heritage, Shanghai University, Shanghai 200444, ChinaMaterials Genome Institute, Shanghai University, Shanghai 200444, ChinaWith the huge demands of an aging society, it is urgent to develop a new generation of non-toxic titanium alloy to match the modulus of human bone. Here, we prepared bulk Ti2448 alloys by powder metallurgy technology, and focused on the influence of the sintering process on the porosity, phase composition, and mechanical properties of the initial sintered samples. Furthermore, we performed solution treatment on the samples under different sintering parameters to further adjust the microstructure and phase composition, so as to achieve strength enhancement and reduction of Young’s modulus. Solution treatment can effectively inhibit the continuous α phase precipitated along the grain boundaries of the β matrix, which is beneficial to the fracture resistance. Therefore, the water-quenched sample exhibits good mechanical properties due to the absence of acicular α-phase. Samples sintered at 1400 °C and subsequently water quenched have excellent comprehensive mechanical properties, which benefit from high porosity and the smaller feature size of microstructure. To be specific, the compressive yield stress is 1100 MPa, the strain at fracture is 17.5%, and the Young’s modulus is 44 GPa, which are more applicable to orthopedic implants. Finally, the relatively mature sintering and solution treatment process parameters were screened out for reference in actual production.https://www.mdpi.com/1996-1944/16/10/3845Ti2448 alloymicrostructure analysisporositymechanical properties |
| spellingShingle | Amy X. Y. Guo Bin Cao Zihan Wang Xiao Ma Shan Cecilia Cao Fabricated High-Strength, Low-Elastic Modulus Biomedical Ti-24Nb-4Zr-8Sn Alloy via Powder Metallurgy Materials Ti2448 alloy microstructure analysis porosity mechanical properties |
| title | Fabricated High-Strength, Low-Elastic Modulus Biomedical Ti-24Nb-4Zr-8Sn Alloy via Powder Metallurgy |
| title_full | Fabricated High-Strength, Low-Elastic Modulus Biomedical Ti-24Nb-4Zr-8Sn Alloy via Powder Metallurgy |
| title_fullStr | Fabricated High-Strength, Low-Elastic Modulus Biomedical Ti-24Nb-4Zr-8Sn Alloy via Powder Metallurgy |
| title_full_unstemmed | Fabricated High-Strength, Low-Elastic Modulus Biomedical Ti-24Nb-4Zr-8Sn Alloy via Powder Metallurgy |
| title_short | Fabricated High-Strength, Low-Elastic Modulus Biomedical Ti-24Nb-4Zr-8Sn Alloy via Powder Metallurgy |
| title_sort | fabricated high strength low elastic modulus biomedical ti 24nb 4zr 8sn alloy via powder metallurgy |
| topic | Ti2448 alloy microstructure analysis porosity mechanical properties |
| url | https://www.mdpi.com/1996-1944/16/10/3845 |
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